EP1195361A1 - Hydraulic binder - Google Patents

Hydraulic binder Download PDF

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Publication number
EP1195361A1
EP1195361A1 EP00890304A EP00890304A EP1195361A1 EP 1195361 A1 EP1195361 A1 EP 1195361A1 EP 00890304 A EP00890304 A EP 00890304A EP 00890304 A EP00890304 A EP 00890304A EP 1195361 A1 EP1195361 A1 EP 1195361A1
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EP
European Patent Office
Prior art keywords
slag
blast furnace
binder according
cao
hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00890304A
Other languages
German (de)
French (fr)
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EP1195361B1 (en
Inventor
Denes Dipl.-Ing. Novak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wopfinger Stein- und Kalkwerke Schmid and Co
Original Assignee
Wopfinger Stein- und Kalkwerke Schmid and Co
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Filing date
Publication date
Priority to ES00890304T priority Critical patent/ES2232413T3/en
Priority to PT00890304T priority patent/PT1195361E/en
Priority to AT00890304T priority patent/ATE277876T1/en
Priority to SI200030567T priority patent/SI1195361T1/en
Priority to EP00890304A priority patent/EP1195361B1/en
Application filed by Wopfinger Stein- und Kalkwerke Schmid and Co filed Critical Wopfinger Stein- und Kalkwerke Schmid and Co
Priority to DE50008015T priority patent/DE50008015D1/en
Priority to DK00890304T priority patent/DK1195361T3/en
Publication of EP1195361A1 publication Critical patent/EP1195361A1/en
Application granted granted Critical
Publication of EP1195361B1 publication Critical patent/EP1195361B1/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/17—Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/17—Mixtures thereof with other inorganic cementitious materials or other activators with calcium oxide containing activators
    • C04B7/19—Portland cements
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B7/00—Hydraulic cements
    • C04B7/14—Cements containing slag
    • C04B7/147—Metallurgical slag
    • C04B7/153—Mixtures thereof with other inorganic cementitious materials or other activators
    • C04B7/21—Mixtures thereof with other inorganic cementitious materials or other activators with calcium sulfate containing activators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding

Definitions

  • the present invention relates to a hydraulic binder from over 5000 cm 2 / g of Blaine finely ground, moderately latent hydraulic blast furnace slag, which contains sulfate exciters and activating additives.
  • Blast furnace slag is produced as a by-product in the production of pig iron.
  • the clay, silicic acid and calcareous components of iron ores as well Limestone and coal contamination at temperatures from 1900 ° C next to the iron smelter a lighter smelt, the so-called blast furnace slag.
  • This slag is at 1400 ° C cooled with water. Because of this rapid cooling a high-glass granulate is created, the latent hydraulic Possesses binding forces. This is where the glassy blast furnace slag comes from not considered as an independent binder. Your hardening energy but can be activated by adding pathogens become. There are basically two options for this activation: the addition of hydrated lime or cement (alkaline Activation) and the addition of calcium sulfate (sulfatic Activation). However, not every slag can be activated immediately.
  • the latent hydraulic binding power of the slag is assessed according to the composition of the slag. This is how Dr. judges Fritz Keil in "Cement, Production and Properties", Springer-Verlag, Berlin 1971 on p. 116, the quality of the slag according to the ratio (CaO + CaS + 0.5MgO + Al 2 O 3 ) / (SiO 2 + MnO) (F-value). If the F value is above 1.9, the slag is considered very good, below 1.5 as moderately hydraulic.
  • Another assessment criterion for the slag activity is the SiO 2 content. Slag with less than 32% is generally considered to be highly hydraulic, with more than 37% to be less hydraulic.
  • the ratio (CaO + MgO) / SiO 2 must be greater than 1.0.
  • slags which have at least 13% Al 2 O 3 content and the ratio (CaO + MgO + Al 2 O 3 ) / SiO 2 are above 1.6 are suitable for the sulfatic activation.
  • Several patents require a CaO content above 40% and an Al 2 O 3 content above 14% (see, for example, CA-PS 1 131 664).
  • the object of the present invention is a binder to create the kind mentioned in the inferior Slags are used and still a high quality Product results.
  • a slag is rarely accidentally all according to the invention have required properties. But since there are very many inferior slags out there, it is often possible through one Mixture of at least two blast furnace slags all required To achieve properties. This has the additional Advantage that the degree of activation becomes much higher when the above requirements by mixing slags different Origin can be reached.
  • the slag is activated by adding or grinding natural gypsum, flue gas desulfurization gypsum (REA gypsum) or anhydrite of 12-20%, Portland cement of 0.5-5% and / or other CaO carriers such as hot meal, quicklime or Ca (OH ) 2 of 0.5-3%, alkali sulfates or carbonates of 0-3% and / or Ca salts of carboxylic acids of 0.5-3%.
  • the use of hot flour has been shown to be advantageous, thereby accelerating the hydration of the slag and increasing the compressive strength.
  • Hot flour is a 70-90% deacidified raw meal that is in the lowest Cyclone stage of the heat exchanger furnace at 800-900 ° C the production of Portland cement clinker is created.
  • the flour is removed from the furnace system by bypass. It contains predominantly CaO.
  • the prisms made from this binder show high Resistance to sulfate attack and give strengths, the strength classes of ⁇ NORM B3310 and EN 197-1 correspond and are comparable to normal Portland cement or even surpass them.
  • a slag according to the invention and another slag (comparative experiment) are used as slag.
  • the slag data and the resulting strengths are given in the following table: analysis Slag mixture well suited Slag mixture not suitable glassiness 94 94 SiO2% 38.3 37.3 A1203% 11.2 10.0 CaO% 35.8 38.2 MgO% 9 10.5 (CaO + MgO) / (Al2O3 + SiO2) 0.91 1.03 ⁇ N B3310 EN 196-1 ⁇ N B 3310 EN 196-1 Compressive strengths N / mm2 after 2 days 7 9 after 3 days 10 11 after 7 days 26 30 15 18 after 28 days 46 49 22 24
  • the strengths can also be increased with concrete additives (such as Liquefiers to reduce the water / binder value increased significantly from 0.6 to 0.30).
  • the binder according to the invention is particularly distinguished due to the very low heat of hydration. It is for them Manufacture of sewage treatment plants, sewer pipes, basins, drip pans and construction objects that are exposed to the sulfate attack are extremely suitable.

Abstract

Hydraulic binder contains a finely ground latent hydraulic blast furnace slag, a sulfate initiator and activating additives. The slag contains 34-40% SiO2, 34-37% CaO, more than 9% Al2O3 and 0.88-0.98 (CaO + MgO)/(Al2O3 + SiO2) with a vitreous content of 93%. Preferred Features: The slag contains at least 13% Al2O3 and is formed by a mixture of at least two blast furnace slags. The slag has a fineness of 5000-6500 cm<2>/g Blaine. The binder further contains 0.5-3% hydrated lime or calcined lime, preferably up to 3% alkali sulfates and/or carbonates, especially 0.5-3% calcium salt of a carboxyl acid, especially calcium acetate and/or calcium formate.

Description

Die vorliegende Erfindung betrifft ein hydraulisches Bindemittel aus über 5000 cm2/g Blaine fein vermahlener, mäßig latent hydraulischer Hochofenschlacke, die Sulfatanreger und aktivierende Zusätze enthält.The present invention relates to a hydraulic binder from over 5000 cm 2 / g of Blaine finely ground, moderately latent hydraulic blast furnace slag, which contains sulfate exciters and activating additives.

Hochofenschlacke entsteht als Nebenprodukt bei der Roheisengewinnung. Im Hochofen bildet sich aus den ton-, kieselsäure- und kalkhältigen Bestandteilen der Eisenerze sowie aus Kalkstein und der Verunreinigung der Kohle bei Temperaturen von 1900°C neben der Eisenschmelze eine leichtere Schmelze, die so genannte Hochofenschlacke. Diese Schlacke wird bei 1400°C mit Wasser abgekühlt. Durch diese rasche Abkühlung entsteht ein hochglasiges Granulat, das latent hydraulische Bindekräfte besitzt. Daher kommt die glasige Hochofenschlacke als selbstständiges Bindemittel nicht in Betracht. Ihre Erhärtungsenergie kann aber durch Zugabe von Erregern aktiviert werden. Für diese Aktivierung gibt es grundsätzlich zwei Möglichkeiten: die Zugabe von Kalkhydrat oder Zement (alkalische Aktivierung) und die Zugabe von Kalciumsulfat (sulfatische Aktivierung). Allerdings ist nicht jede Schlacke gleich aktivierbar.Blast furnace slag is produced as a by-product in the production of pig iron. In the blast furnace, the clay, silicic acid and calcareous components of iron ores as well Limestone and coal contamination at temperatures from 1900 ° C next to the iron smelter a lighter smelt, the so-called blast furnace slag. This slag is at 1400 ° C cooled with water. Because of this rapid cooling a high-glass granulate is created, the latent hydraulic Possesses binding forces. This is where the glassy blast furnace slag comes from not considered as an independent binder. Your hardening energy but can be activated by adding pathogens become. There are basically two options for this activation: the addition of hydrated lime or cement (alkaline Activation) and the addition of calcium sulfate (sulfatic Activation). However, not every slag can be activated immediately.

Die Beurteilung der latent hydraulischen Bindekraft der Schlacke erfolgt nach der Zusammensetzung der Schlacke. So beurteilt Dr. Fritz Keil in "Zement, Herstellung und Eigenschaften", Springer-Verlag, Berlin 1971 auf S. 116, die Qualität der Schlacke nach dem Verhältnis (CaO+CaS+0,5MgO+Al2O3)/(SiO2+MnO) (F-Wert). Liegt der F-Wert über 1,9, gilt die Schlacke als sehr gut, unter 1,5 als mäßig hydraulisch. Ein weiteres Beurteilungskriterium für die Schlackenaktivität ist der SiO2-Gehalt. So gelten Schlacken mit weniger als 32% im Allgemeinen als hochhydraulisch, mit mehr als 37% als wenig hydraulisch.The latent hydraulic binding power of the slag is assessed according to the composition of the slag. This is how Dr. judges Fritz Keil in "Cement, Production and Properties", Springer-Verlag, Berlin 1971 on p. 116, the quality of the slag according to the ratio (CaO + CaS + 0.5MgO + Al 2 O 3 ) / (SiO 2 + MnO) (F-value). If the F value is above 1.9, the slag is considered very good, below 1.5 as moderately hydraulic. Another assessment criterion for the slag activity is the SiO 2 content. Slag with less than 32% is generally considered to be highly hydraulic, with more than 37% to be less hydraulic.

Bezüglich der alkalischen Aktivierung wird nach EN 197-1 bei der Zementherstellung für die Schlackenqualität folgende Forderung gestellt: das Verhältnis (CaO+MgO)/SiO2 muss größer als 1,0 sein. With regard to alkaline activation, the following requirement is set for cement quality for slag quality according to EN 197-1: the ratio (CaO + MgO) / SiO 2 must be greater than 1.0.

Für die sulfatische Aktivierung eignen sich laut Literatur Schlacken, die mindestens 13% Al2O3-Gehalt aufweisen und das Verhältnis (CaO+MgO+Al2O3)/SiO2 über 1,6 liegt. Mehrere Patente verlangen eine CaO-Gehalt über 40% und einen Al2O3-Gehalt über 14% (siehe z.B. die CA-PS 1 131 664).According to the literature, slags which have at least 13% Al 2 O 3 content and the ratio (CaO + MgO + Al 2 O 3 ) / SiO 2 are above 1.6 are suitable for the sulfatic activation. Several patents require a CaO content above 40% and an Al 2 O 3 content above 14% (see, for example, CA-PS 1 131 664).

In der CA-PS 1 131 664 ist ein Bindemittel beschrieben, das folgende Zusammensetzung aufweist:

80-85% granulierte Hochofenschlacke
(mit 40-50% CaO
14-20% Al2O3
30-35% SiO2
5-8% MgO),
13-17% CaSO4
(gerechnet als Anhydrit),
1,5-2,5%
Portlandzement,
0,1-0,5%
einer organischen Carboxylsäure oder deren
Salze,
0,03-0,6%
Methylcellulose, Na-stearat oder Na-laurylbenzolsulfonat und
0,6-2%
Natriumsulfat.
CA-PS 1 131 664 describes a binder which has the following composition:
80-85% granulated blast furnace slag
(with 40-50% CaO
14-20% Al 2 O 3
30-35% SiO 2
5-8% MgO),
13-17% CaSO 4
(calculated as anhydrite),
1.5-2.5%
Portland cement,
0.1-0.5%
an organic carboxylic acid or its
salts
0.03-0.6%
Methyl cellulose, sodium stearate or sodium laurylbenzenesulfonate and
0.6-2%
Sodium sulfate.

In Übereinstimmung mit dem oben Gesagten wird hochhydraulische Schlacke eingesetzt. Zur Verbesserung wird sogar empfohlen, Al2O3 und CaO der Schlacke zuzusetzen und dieses Gemisch zu erhitzen.In accordance with the above, highly hydraulic slag is used. To improve this, it is even recommended to add Al 2 O 3 and CaO to the slag and to heat this mixture.

Auf Grund der oben angeführten Kriterien ist leider der Großteil der anfallenden Hochofenschlacke als mäßig hydraulisch zu beurteilen. Diese minderwertigeren Hochofenschlacken können in der Zementindustrie als Zumahlstoffe erfahrungsgemäß bis zu maximal 65% des Zementgehaltes eingesetzt werden, da darüber hinaus die Festigkeiten rapide sinken. Auch die Betonindustrie kann diese Schlacke nur begrenzt als Zusatzstoffe verwenden.Due to the criteria listed above, the Most of the blast furnace slag produced is moderately hydraulic to judge. These inferior blast furnace slags Experience has shown that they can be used as additives in the cement industry up to a maximum of 65% of the cement content can be used, because in addition, the strengths drop rapidly. Also the Concrete industry can only use this slag to a limited extent as additives use.

Es ist Aufgabe der vorliegenden Erfindung, ein Bindemittel der eingangs genannten Art zu schaffen, bei dem minderwertige Schlacken zum Einsatz kommen und das dennoch ein hochwertiges Produkt ergibt.The object of the present invention is a binder to create the kind mentioned in the inferior Slags are used and still a high quality Product results.

Diese Aufgabe wird durch ein Bindemittel der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass die mäßig latent hydraulische Hochofenschlacke folgende Analysenwerte aufweist:

Glasigkeit:
>93%
SiO2:
34-40%
CaO:
34-37%
Al2O3:
>9%
(CaO+MgO)/(Al2O3+SiO2):
0,88-0,98
This object is achieved according to the invention by a binder of the type mentioned at the outset in that the moderately latent hydraulic blast furnace slag has the following analysis values:
glassiness:
> 93%
SiO 2 :
34-40%
CaO:
34-37%
Al 2 O 3 :
> 9%
(CaO + MgO) / (Al 2 O 3 + SiO 2 ):
0.88-0.98

Überraschender Weise wurde gefunden, dass Schlacken, die diese Parameter erfüllen, gute Produkte ergeben, selbst dann, wenn sie nach den üblichen Kriterien als mäßig hydraulisch einzustufen sind. Es können Schlacken mit weniger als 13% Al2O3 eingesetzt werden. Es kann der F-Wert unter 1,5 liegen und das Verhältnis (CaO+MgO+Al2O3)/SiO2 unter 1,6 liegen.Surprisingly, it has been found that slags that meet these parameters produce good products, even if they are classified as moderately hydraulic according to the usual criteria. Slags with less than 13% Al 2 O 3 can be used. The F value can be below 1.5 and the ratio (CaO + MgO + Al 2 O 3 ) / SiO 2 can be below 1.6.

Eine Schlacke wird nur selten zufällig alle erfindungsgemäß geforderten Eigenschaften aufweisen. Da es aber sehr viele minderwertige Schlacken gibt, ist es oft möglich, durch ein Gemisch aus mindestens zwei Hochofenschlacken alle geforderten Eigenschaften zu erreichen. Dies hat den zusätzlichen Vorteil, dass der Aktivierungsgrad viel höher wird, wenn die obigen Voraussetzungen durch Mischung von Schlacken unterschiedlicher Herkunft erreicht werden.A slag is rarely accidentally all according to the invention have required properties. But since there are very many inferior slags out there, it is often possible through one Mixture of at least two blast furnace slags all required To achieve properties. This has the additional Advantage that the degree of activation becomes much higher when the above requirements by mixing slags different Origin can be reached.

Die Aktivierung der Schlacke erfolgt durch Zumischung oder Zumahlung von natürlichem Gips, Rauchgasentschwefelungsgips (REA-Gips) oder Anhydrit von 12-20%, Portlandzement von 0,5-5% und/oder anderen CaO-Trägern wie Heißmehl, Branntkalk oder Ca(OH)2 von 0,5-3%, Alkalisulfaten oder -carbonaten von 0-3% und/oder Ca-Salzen von Carboxylsäuren von 0,5-3%. Vorteilhaft hat sich der Einsatz von Heißmehl gezeigt, wodurch die Hydratation der Schlacke beschleunigt wird und die Druckfestigkeiten erhöht werden.The slag is activated by adding or grinding natural gypsum, flue gas desulfurization gypsum (REA gypsum) or anhydrite of 12-20%, Portland cement of 0.5-5% and / or other CaO carriers such as hot meal, quicklime or Ca (OH ) 2 of 0.5-3%, alkali sulfates or carbonates of 0-3% and / or Ca salts of carboxylic acids of 0.5-3%. The use of hot flour has been shown to be advantageous, thereby accelerating the hydration of the slag and increasing the compressive strength.

Heißmehl ist ein 70-90% entsäuertes Rohmehl, das in der untersten Zyklonstufe des Wärmetauscherofens bei 800-900°C bei der Erzeugung von Portlandzementklinker entsteht. Das Mehl wird mittels Bypass von dem Ofensystem entnommen. Es enthält überwiegend CaO. Hot flour is a 70-90% deacidified raw meal that is in the lowest Cyclone stage of the heat exchanger furnace at 800-900 ° C the production of Portland cement clinker is created. The flour is removed from the furnace system by bypass. It contains predominantly CaO.

Die aus diesem Bindemittel hergestellten Prismen zeigen hohen Widerstand gegen Sulfatangriff und ergeben Festigkeiten, die den Festigkeitsklassen der ÖNORM B3310 und den EN 197-1 entsprechen und dem normalen Portlandzement vergleichbar sind oder diese sogar übertreffen.The prisms made from this binder show high Resistance to sulfate attack and give strengths, the strength classes of ÖNORM B3310 and EN 197-1 correspond and are comparable to normal Portland cement or even surpass them.

Anhand eines Beispiels wird die vorliegende Erfindung erläutert. Es wird ein Bindemittel aus folgenden Bestandteilen hergestellt:

85%
Schlacke (Blainewert 5800 cm2/g)
13%
REA-Gips
1%
Portlandzement
0,5%
Heißmehl
0,5%
Kalciumacetat
The present invention is explained using an example. A binder is made from the following ingredients:
85%
Slag (Blaine value 5800 cm 2 / g)
13%
FGD gypsum
1%
Portland cement
0.5%
hot meal
0.5%
Kalciumacetat

Als Schlacke wird einmal eine erfindungsgemäße Schlacke und einmal eine andere Schlacke (Vergleichsversuch) verwendet. Die Daten der Schlacken und die sich ergebenden Festigkeiten sind in der folgenden Tabelle angegeben: Analyse Schlackenmischung gut geeignet Schlackenmischung nicht geeignet Glasigkeit 94 94 SiO2 % 38,3 37,3 A1203 % 11,2 10,0 CaO % 35,8 38,2 MgO % 9 10,5 (CaO+MgO)/(Al2O3+SiO2) 0,91 1,03 ÖN B3310 EN 196-1 ÖN B 3310 EN 196-1 Druckfestigkeiten N/mm2 nach 2 Tagen 7 9 nach 3 Tagen 10 11 nach 7 Tagen 26 30 15 18 nach 28 Tagen 46 49 22 24 A slag according to the invention and another slag (comparative experiment) are used as slag. The slag data and the resulting strengths are given in the following table: analysis Slag mixture well suited Slag mixture not suitable glassiness 94 94 SiO2% 38.3 37.3 A1203% 11.2 10.0 CaO% 35.8 38.2 MgO% 9 10.5 (CaO + MgO) / (Al2O3 + SiO2) 0.91 1.03 ÖN B3310 EN 196-1 ÖN B 3310 EN 196-1 Compressive strengths N / mm2 after 2 days 7 9 after 3 days 10 11 after 7 days 26 30 15 18 after 28 days 46 49 22 24

Die Festigkeiten können zusätzlich mit Betonadditiven (wie Verflüssigern zur Herabsetzung des Wasser/Bindemittel-Wertes von 0,6 auf 0,30) noch wesentlich gesteigert werden.The strengths can also be increased with concrete additives (such as Liquefiers to reduce the water / binder value increased significantly from 0.6 to 0.30).

Das erfindungsgemäße Bindemittel zeichnet sich besonders durch die sehr niedrige Hydrationswärme aus. Es ist für die Herstellung von Kläranlagen, Kanalrohren, Becken, Auffangwannen und Bauobjekten, die dem Sulfatangriff ausgesetzt sind, hervorragend geeignet.The binder according to the invention is particularly distinguished due to the very low heat of hydration. It is for them Manufacture of sewage treatment plants, sewer pipes, basins, drip pans and construction objects that are exposed to the sulfate attack are extremely suitable.

Claims (9)

Hydraulisches Bindemittel aus über 5000 cm2/g Blaine fein vermahlener, mäßig latent hydraulischer Hochofenschlacke, die Sulfatanreger und aktivierende Zusätze enthält, dadurch gekennzeichnet, dass die mäßig latent hydraulische Hochofenschlacke folgende Analysenwerte aufweist:
Glasigkeit:
>93%
SiO2:
34-40%
CaO:
34-37%
Al2O3:
>9%
(CaO+MgO)/(Al2O3+SiO2):
0,88-0,98
Hydraulic binder from over 5000 cm 2 / g Blaine finely ground, moderately latent hydraulic blast furnace slag, which contains sulfate stimulants and activating additives, characterized in that the moderately latent hydraulic blast furnace slag has the following analytical values:
glassiness:
> 93%
SiO 2 :
34-40%
CaO:
34-37%
Al 2 O 3 :
> 9%
(CaO + MgO) / (Al 2 O 3 + SiO 2 ):
0.88-0.98
Bindemittel nach Anspruch 1, dadurch gekennzeichnet, dass der Anteil an Al2O3 in der Hochofenschlacke höchstens 13% beträgt.Binder according to claim 1, characterized in that the proportion of Al 2 O 3 in the blast furnace slag is at most 13%. Bindemittel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Hochofenschlacke durch ein Gemisch von mindestens zwei Hochofenschlacken gebildet ist.Binder according to claim 1 or 2, characterized in that the blast furnace slag is formed by a mixture of at least two blast furnace slags. Bindemittel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die mäßig hydraulische Schlacke eine Feinheit von 5000-6500 cm2/g Blaine aufweist.Binder according to one of claims 1 to 3, characterized in that the moderately hydraulic slag has a fineness of 5000-6500 cm 2 / g Blaine. Bindemittel nach einem der Ansprüche 1-4, dadurch gekennzeichnet, dass es 0,5-5% Anteil Portlandzementklinker bzw. Portlandzement enthält.Binder according to one of claims 1-4, characterized in that it contains 0.5-5% of Portland cement clinker or Portland cement. Bindemittel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass es als Sulfatträger 12-20% Abfallgips der Rauchgasentschwefelung oder Halbhydrat oder Anhydrit oder Naturgips oder Gemische dieser Sulfatträger enthält.Binder according to one of claims 1 to 5, characterized in that it contains 12-20% waste gypsum from flue gas desulfurization or hemihydrate or anhydrite or natural gypsum or mixtures of these sulfate carriers as sulfate carrier. Bindemittel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass es 0,5-3% Heißmehl oder Kalkhydrat oder Branntkalk enthält.Binder according to one of claims 1 to 6, characterized in that it contains 0.5-3% hot meal or hydrated lime or quicklime. Bindemittel nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass es bis zu 3% Alkalisulfate und/oder -carbonate enthält, insbesondere K2SO4, Na2SO4, Na2CO3, LiCO3 oder K2CO3. Binder according to one of claims 1 to 7, characterized in that it contains up to 3% alkali sulfates and / or carbonates, in particular K 2 SO 4 , Na 2 SO 4 , Na 2 CO 3 , LiCO 3 or K 2 CO 3 . Bindemittel nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass es 0,5-3% Kalciumsalz einer Carboxylsäure, insbesondere Kalciumacetat und/oder Kalciumformiat enthält.Binder according to one of claims 1 to 8, characterized in that it contains 0.5-3% calcium salt of a carboxylic acid, in particular calcium acetate and / or calcium formate.
EP00890304A 2000-10-09 2000-10-09 Hydraulic binder Expired - Lifetime EP1195361B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
PT00890304T PT1195361E (en) 2000-10-09 2000-10-09 HYDRAULIC LIGHTING
AT00890304T ATE277876T1 (en) 2000-10-09 2000-10-09 HYDRAULIC BINDER
SI200030567T SI1195361T1 (en) 2000-10-09 2000-10-09 Hydraulic binder
EP00890304A EP1195361B1 (en) 2000-10-09 2000-10-09 Hydraulic binder
ES00890304T ES2232413T3 (en) 2000-10-09 2000-10-09 HYDRAULIC BINDER.
DE50008015T DE50008015D1 (en) 2000-10-09 2000-10-09 Hydraulic binder
DK00890304T DK1195361T3 (en) 2000-10-09 2000-10-09 Hydraulic binder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00890304A EP1195361B1 (en) 2000-10-09 2000-10-09 Hydraulic binder

Publications (2)

Publication Number Publication Date
EP1195361A1 true EP1195361A1 (en) 2002-04-10
EP1195361B1 EP1195361B1 (en) 2004-09-29

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EP00890304A Expired - Lifetime EP1195361B1 (en) 2000-10-09 2000-10-09 Hydraulic binder

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Country Link
EP (1) EP1195361B1 (en)
AT (1) ATE277876T1 (en)
DE (1) DE50008015D1 (en)
DK (1) DK1195361T3 (en)
ES (1) ES2232413T3 (en)
PT (1) PT1195361E (en)
SI (1) SI1195361T1 (en)

Cited By (8)

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Publication number Priority date Publication date Assignee Title
EP2080742A2 (en) 2008-01-15 2009-07-22 HeidelbergCement AG Sulphate foundry cement
WO2010015907A2 (en) 2008-08-07 2010-02-11 Holcim Technology Ltd Hydraulic binder
EP1975135A3 (en) * 2007-03-30 2013-01-02 Novak, Denes, Dipl-Ing. Hydraulic bonding agent
EP3015438A1 (en) * 2014-10-30 2016-05-04 Bostik Sa Hydraulic binder made of cast blast-furnace granulated slag with improved curing and hardening
CN107140855A (en) * 2017-07-05 2017-09-08 青海大学 A kind of method that concrete regenerating micro mist produces magnesium cement activated magnesia
WO2018011268A1 (en) * 2016-07-12 2018-01-18 Holcim Technology Ltd Concretes for the construction of solid structures
EP2496533B1 (en) 2009-11-05 2019-05-15 Saint-Gobain Weber Construction material binders
EP3458426B1 (en) 2016-05-18 2022-07-20 Saint-Gobain Weber Binder based on calcium aluminosilicate derivatives for construction materials.

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DE102006057076B4 (en) * 2006-11-30 2011-02-24 Bellmann, Frank, Dr.-Ing. Hydraulic binder
IT1397187B1 (en) * 2009-11-30 2013-01-04 Italcementi Spa HYDRAULIC BINDER INCLUDING A LARGE FORCID PASTA.

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1975135A3 (en) * 2007-03-30 2013-01-02 Novak, Denes, Dipl-Ing. Hydraulic bonding agent
EP2080742A2 (en) 2008-01-15 2009-07-22 HeidelbergCement AG Sulphate foundry cement
WO2010015907A2 (en) 2008-08-07 2010-02-11 Holcim Technology Ltd Hydraulic binder
WO2010015907A3 (en) * 2008-08-07 2010-03-25 Holcim Technology Ltd Hydraulic binder
AU2009278890B2 (en) * 2008-08-07 2014-07-10 Holcim Technology Ltd Hydraulic binder
EP2496533B1 (en) 2009-11-05 2019-05-15 Saint-Gobain Weber Construction material binders
FR3027897A1 (en) * 2014-10-30 2016-05-06 Bostik Sa WATER-BASED HYDRAULIC BINDER GRANULATED HIGH GROCERY MILL WITH IMPROVED TAKING AND CURING
US9656918B2 (en) 2014-10-30 2017-05-23 Bostik Sa Hydraulic binder based on ground granulated blast furnace slag having improved setting improved curing
EP3015438A1 (en) * 2014-10-30 2016-05-04 Bostik Sa Hydraulic binder made of cast blast-furnace granulated slag with improved curing and hardening
EP3458426B1 (en) 2016-05-18 2022-07-20 Saint-Gobain Weber Binder based on calcium aluminosilicate derivatives for construction materials.
WO2018011268A1 (en) * 2016-07-12 2018-01-18 Holcim Technology Ltd Concretes for the construction of solid structures
FR3053966A1 (en) * 2016-07-12 2018-01-19 Holcim Technology Ltd CONCRETE FOR THE CONSTRUCTION OF MASSIVE STRUCTURES
CN107140855A (en) * 2017-07-05 2017-09-08 青海大学 A kind of method that concrete regenerating micro mist produces magnesium cement activated magnesia

Also Published As

Publication number Publication date
DE50008015D1 (en) 2004-11-04
SI1195361T1 (en) 2005-04-30
ATE277876T1 (en) 2004-10-15
DK1195361T3 (en) 2005-01-31
EP1195361B1 (en) 2004-09-29
PT1195361E (en) 2005-02-28
ES2232413T3 (en) 2005-06-01

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